Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    22/04/2026, 11:01

General

  • Target
    2026-04-22_5f214fc2022104c31260f7a893688db1_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
  • Size 579KB
  • Sample260422-m4j3sshx9z
  • SHA256 adca6b3ee4719a149ec2ed1b4c350e3125fb169ff103fabed26ae0df0745d22b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • xworm

Version
  • XWorm V5.6

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    USB.exe

  • pastebin_url

    https://pastebin.com/raw/Fxzr3jeT

Signatures

  • Family: Xworm

    Xworm is a remote access trojan written in C#.

  • Detect Xworm Payload 4 IoCs
  • Custom signature
    Detects Windows executables referencing non-Windows User-Agents 4 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Modifies system executable filetype association 2 TTPs 6 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-22_5f214fc2022104c31260f7a893688db1_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-22_5f214fc2022104c31260f7a893688db1_cobalt-strike_glassworm_icedid_ryuk_satacom_stealc_vidar_xworm.exe"
    1⤵
    • Modifies system executable filetype association
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3688
    • C:\Users\Admin\Documents\diagnostics\audiodg.exe
      "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4820
    • C:\Users\Admin\Documents\diagnostics\shost.exe
      "C:\Users\Admin\Documents\diagnostics\shost.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system executable filetype association
      • Enumerates connected drives
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2540
      • C:\Users\Admin\Documents\diagnostics\audiodg.exe
        "C:\Users\Admin\Documents\diagnostics\audiodg.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:6032

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        RCXFEF4.tmp

        • Path C:\Program Files\7-Zip\RCXFEF4.tmp
        • Size 377KB
        • SHA256 290179e7bd2e7910acfb98b8c0c01a3e0e660abc2fa2d938f6ba356258562e95
        • MD5 SHA1 SHA512 SSDEEP TLSH

        043644057135.exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\043644057135.exe
        • Size 4.1MB
        • SHA256 78425e626d0830c35ee05307ad6958055493acebbb8a2548ba3de4af6d6378f7
        • MD5 SHA1 SHA512 SSDEEP TLSH

        066691578172.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\066691578172.ico
        • Size 1KB
        • SHA256 2ea5c025b0613b1a20bc146508cf692b5de4d285f7acc17dc4035315952fd7f8
        • MD5 SHA1 SHA512 TLSH

        248222046989..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\248222046989..exe
        • Size 1.4MB
        • SHA256 e6adb24c63c2622f76ed91b2def9498074716f5e154dd483b3469848e38174af
        • MD5 SHA1 SHA512 SSDEEP TLSH

        345821988187.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\345821988187.ico
        • Size 1KB
        • SHA256 3568edd042f59b52c726b5ff682e65fcad53b953397e49838bd017f730436f9d
        • MD5 SHA1 SHA512 TLSH

        384156946895..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\384156946895..exe
        • Size 1.4MB
        • SHA256 1724f2173c7307bea75bb4621bf7f52b673393f8bd2b77ee8308d3061eabe271
        • MD5 SHA1 SHA512 SSDEEP TLSH

        429998388318.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\429998388318.ico
        • Size 1KB
        • SHA256 d70944fea4517b3b68ee043da9e5f8cd1ab6559e98666ea93ed7468254ce0785
        • MD5 SHA1 SHA512 TLSH

        606332941030.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\606332941030.ico
        • Size 1KB
        • SHA256 fe526d6535d43c577cf54d22f446498ad613635860a6300f5b7654765ee9b929
        • MD5 SHA1 SHA512 TLSH

        631747211909.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\631747211909.ico
        • Size 1KB
        • SHA256 bc1363b69ec13c49d94af754cce4bffe81b589f3bf2039c84bf1472b3b483f6f
        • MD5 SHA1 SHA512 TLSH

        657053963751.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\657053963751.ico
        • Size 1KB
        • SHA256 69868f3977849e6f0726f505ed8ce7ffaadd07268f061d3705980aa32ba74885
        • MD5 SHA1 SHA512 TLSH

        695357801478.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\695357801478.ico
        • Size 1KB
        • SHA256 325e37428cb5578f7f88dcc924a6a2a398d707d3cad6406802a9a06aac630126
        • MD5 SHA1 SHA512 TLSH

        826115936782.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\826115936782.ico
        • Size 1KB
        • SHA256 06d58ca32d62202496baef4f3dec37ee2cacdb5775341c6fb4cccfa4448a03f9
        • MD5 SHA1 SHA512 TLSH

        827490629521.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\827490629521.ico
        • Size 1KB
        • SHA256 c6ac3a2d4ea590ba6a624de69c86e20852b72c71cc7724a3ff4577fb15b32b2c
        • MD5 SHA1 SHA512 TLSH

        850845037832..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\850845037832..exe
        • Size 263KB
        • SHA256 66bf24b6a4a645bb814a8d44de5cb98ff544aa24c8acc843d21337260f6f5d43
        • MD5 SHA1 SHA512 SSDEEP TLSH

        906300782739.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\906300782739.ico
        • Size 1KB
        • SHA256 6573d3579ab0ce71f8d95d6a89d2a4d75f6bbe31a6861ab5b8002ddedb76a477
        • MD5 SHA1 SHA512 TLSH

        935368383344..exe

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\935368383344..exe
        • Size 107KB
        • SHA256 16f7ddaa4944632505f557d45ade328911169a7af17599a71ffe7edfa5eb5f51
        • MD5 SHA1 SHA512 SSDEEP TLSH

        998929246160.ico

        • Path C:\Users\Admin\AppData\Local\Temp\PROGRA~~1\998929246160.ico
        • Size 1KB
        • SHA256 80b6b561da261f5549cc3f1b3baad5efc025770ce206b0250977dbab229fe4d7
        • MD5 SHA1 SHA512 TLSH

        audiodg.exe

        • Path C:\Users\Admin\Documents\diagnostics\audiodg.exe
        • Size 62KB
        • SHA256 76957a7db92abf1667474a4e45477cea7297e9a25c78c1fadd94795fc5390833
        • MD5 SHA1 SHA512 SSDEEP TLSH

        shost.exe

        • Path C:\Users\Admin\Documents\diagnostics\shost.exe
        • Size 375KB
        • SHA256 f5b2ff5f789d67c68887a8a60b0d4f7eb4bdb9a3525930b4211898b9f1953f82
        • MD5 SHA1 SHA512 SSDEEP TLSH

        logs.txt

        • Path C:\Users\Admin\Documents\logs.txt
        • Size 4KB
        • SHA256 2a01d8e8e9e7688baae182d41336e8dc6229551a7c10305cade0b0b6eaa2d54d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4820-1768-0x000000001BA20000-0x000000001BBBA000-memory.dmp

        memory/4820-18-0x0000000000DD0000-0x0000000000DE6000-memory.dmp

        memory/6032-4366-0x000000001BF70000-0x000000001BF82000-memory.dmp

        memory/6032-4365-0x000000001B660000-0x000000001B7FA000-memory.dmp

        memory/6032-5113-0x000000001B660000-0x000000001B7FA000-memory.dmp